In theory, Shiftlings should be an excellent game. It’s a puzzle platformer with a unique mechanic as its basis, and it is able to squeeze a wide variety of challenges out of that mechanic. It has a bright, colorful, and attractive graphical style. And it’s built for two characters that can be controlled either through local co-op or in single player. The formula is there for a memorable experience, but unfortunately, Shiftlings is a game that never hits its stride. The game’s defining mechanic doesn’t translate into fun moment to moment gameplay. The movement requires too much precision to make the co-op experience enjoyable, the level design is aggravating, the story and humor fall flat, and the controls aren’t tight enough to effectively support the game’s difficulty level. These problems all take their turn spoiling the experience and keeping Shiftlings from ever getting fully off the ground.